package com.example.springcloud.controller;

import com.example.springcloud.entities.CommonResult;
import com.example.springcloud.entities.Payment;
import com.example.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * @ClassName PaymentController
 * @Author Admin
 * @Date 2020/9/1 13:21
 * @Version 1.0
 **/
@RestController
@Slf4j
public class PaymentController {
    @Resource
    private PaymentService paymentService;

    @Value("${server.port}")
    private String serverPort;

    @Resource
    private DiscoveryClient discoveryClient;

    @PostMapping(value = "/payment/create")
    public CommonResult create(@RequestBody Payment payment) {
        final int result = paymentService.create(payment);
        log.info("****插入结果：" + result);
        if (result > 0) {
            return new CommonResult(200, "插入数据库成功,serverPort：" + serverPort, result);
        } else {
            return new CommonResult(400, "插入数据库失败", null);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id) {
        Payment payment = paymentService.getPaymentById(id);
        log.info("****查询结果：" + payment + "O(∩_∩)O哈哈~");
        if (payment != null) {
            return new CommonResult(200, "查询成功,serverPort：" + serverPort, payment);
        } else {
            return new CommonResult(400, "没有对应记录，查询ID:" + id, null);
        }
    }

    @GetMapping(value = "/payment/discovery")
    public Object discovery() {
        final List<String> services = discoveryClient.getServices();
        //获取所有服务
        for (String element : services) {
            log.info("*******:" + element);
        }
        //根据服务地址，获取当前地址下有哪些服务信息
        final List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId() + "\t" + instance.getHost() + "\t" + instance.getPort() + "\t" + instance.getUri());
        }
        return discoveryClient;
    }

    /**
     * 手写一个负载均衡
     *
     * @return
     */
    @GetMapping(value = "/payment/lb")
    public String getPaymentLB() {
        return serverPort;
    }

    /**
     * 加入业务逻辑处理正确，需要耗时 3 秒钟
     *
     * @return
     */
    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout() {
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return serverPort;
    }


    @GetMapping(value = "/payment/zipkin")
    public String paymentZipkin() {
        return "paymentZipkin链路调用，测试请求都调了哪些服务模块！";
    }
}